*** Loader Error Fail Authorize

i need help this is my second purchase of my account. the last time was nov 7 2010 and now i have new PC when i log-in to my user name and password. it says Error Fail Authorize i think because of the previous computer that i use and that previous computer was dead and i thought i can use the same account but that was last year ago i'm too dumb i wasn't think. i need help how to use my account again on this new PC but same account name. De.Bug VIP. :love7: